What provision is made for sea chests for...

Question 1 / 270705eccef9cbacbc34ba4d45737

Question 1 of 270705eccef9cbacbc34ba4d45737

What provision is made for sea chests for removal of air ingested into the sea chest of a machinery space sea water cooling system?

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Question 1 of 27070

What provision is made for sea chests for removal of air ingested into the sea chest of a machinery space sea water cooling system?

🔍 Key Concepts

• Sea chest design and purpose in a machinery space seawater cooling system • Difference between a drain line (bottom) and a vent line (top) on a sea chest • Regulatory concerns about overboard vs. bilge discharges and load line limitations

💭 Think About

• Ask yourself: where does air naturally collect in a flooded box like a sea chest – at the top or at the bottom? How does that affect whether you use a drain or a vent? • Think about why regulations care about where a line terminates in relation to the deep-draft load line. What risk is being controlled by requiring termination above that line? • Consider whether you ever want a line that is normally open to lead directly into the bilges. What safety or flooding issue could that create?

✅ Before You Answer

• Verify which line (from the top or bottom of the sea chest) is physically suited to remove trapped air, not water. • Check which termination point (above the deep-draft load line vs. into the bilges) is consistent with preventing unintended flooding or contamination. • Confirm that the arrangement allows continuous removal of air without creating a direct path for seawater into the bilges.

Question 1 of 27070

What provision is made for sea chests for removal of air ingested into the sea chest of a machinery space sea water cooling system?

The air may be continuously removed by an open valve located in the drain line originating from the bottom of the sea chest and terminating above the deep-draft load line.

The air may be continuously removed by an open valve located in the drain line originating from the bottom of the sea chest and terminating in the bilges.

The air may be continuously removed by an open valve located in the vent line originating from the top of the sea chest and terminating above the deep-draft load line.

The air may be continuously removed by an open valve located in the vent line originating from the top of the sea chest and terminating in the bilges.

Question 1 / 270705eccef9cbacbc34ba4d45737

Question 1 of 270705eccef9cbacbc34ba4d45737

What provision is made for sea chests for removal of air ingested into the sea chest of a machinery space sea water cooling system?

Back

Question 1 of 27070

What provision is made for sea chests for removal of air ingested into the sea chest of a machinery space sea water cooling system?